scholarly journals COPPER AND IRON SUPPLEMENTATION IN THE DIETS OF LAYING HENS IN THE TROPICAL ENVIRONMENT — EFFECTS ON PRODUCTION TRAITS

2021 ◽  
Vol 15 ◽  
pp. 91-97
Author(s):  
J. A. AGUNBIADE ◽  
G. M. BABATUNDE

One hundred and thirty-five fifty-two-week-old hybrid layers (Hubbard Strain), were allocated to 9 dietary treatments of 15 birds each. The birds were fed, on one of 9 diets, consisting of three levels of supplemental copper: 0,200 and 400 ppm and three levels of supplemental iron: 0,100 and 200 ppm for 12 weeks. Per cent day egg production, egg grade, feed intake, efficiency of teed conversion, mortality and body weight change were measured. No significant effects of copper or iron or their interaction, were observed for any of the traits measured in the study. However, diets supplemented with 100ppm Fe/400ppm Fe/0 ppm Cu, showed slight improvements in egg production and efficiency of feed conversion over the control. The diet supplemented with 100ppm Fe/200ppm Cu also showed the most marked body weight gain. The results of this study seem to indicate that the effects of copper supplements, equivalent to those found to stimulate growth in pigs and chicks, are of little or no significance in old layers in a tropical environment. The results also showed that concurrent supplementation of copper containing diet with iron is not necessary for old layers.

2021 ◽  
Vol 41 (2) ◽  
pp. 1-11
Author(s):  
C. C. Ogbu ◽  
E. E. Nwachukwu ◽  
C. C. Nwosu

The relative economic weight (REW) of a trait is the additional gain/loss from a unit change in the trait relative to other traits in an individual. They are used to calculate aggregate economic values for purposes of genetic improvement in animals. The present study was designed to evaluate the bio-economic variables of growth and 16 weeks egg production parameters: egg number (EN16) egg weight (EWT16) body weight at first egg (BWTFE), body weight at 16 week of lay (BWTE16), cost of feed, and revenue from eggs and chicken carcass, 16 feed conversion ratio (FCR ), and body weight gain (BWG16) in the Nigerian indigenous chicken, and to determine the economic weights (EW) and REW of EN16, EWT16 and BWTE16 for G0, G1, and G2 generations. A total of 250 pullets (20 week old, point of lay) from a population of heavy body weight local chickens were used for the study. The birds were housed individually in cages, fed optimally on layers mash (G and G : 100g/bird/day; G : 0 1 2 125g/bird/day) and given water ad libitum. Data included EN , EWT , BWTE , BWTFE, 16 16 16 and prices of feed, eggs and spent hens, FCR , and BWG . Data on EN , EWT , BWTE , 16 16 16 16 16 and BWTFE were compared across generations using ANOVAand with other variables were used to generate the EW of the traits. The EW were then standardized relative to that of BWTE . Results showed that EW and REW of EN , EWT , and BWTE were 7.47 and 3.15, 16 16 16 16 13.67 and 5.77 and -2.37 and -1.00, respectively in G ; 13.07 and 3.82, 23.69 and 6.93, and - 0 3.42 and -1.00, respectively in G ; 16.80 and 2.89, 30.75 and 5.28 and -5.82 and -1.00, 1 respectively in G generation. Thus EN and EWT enhanced while BWTE depressed the 2 16 16 16 worth of the hen as a layer. EWT was more important than EN and both were more 16 16 important than BWTE economically. Therefore, EWT and EN are the major bio-economic 16 variables of the local hen as an egg chicken.


2019 ◽  
Vol 4 (2) ◽  
pp. 75
Author(s):  
Fatkur Rohman ◽  
Ristika Handarini ◽  
Hanafi Nur

Moringa leaves contain phytochemicals which can be used to improve the performance of quails in their growing period.  This study was aimed at assessing the effects of the inclusion of moringa leaf solution in drinking water on the performance of quails.  The study was conducted at Badrupuyuh Farm, Sukajaya Village RT 01/02, Ciomas, Bogor Regency from October to December 2017.  One-hundred quail birds aged 7 days with average initial body weight of 17.87±0.46 g were used.  The birds were fed starter and grower commercial rations.  Moringa leaf solution was given through drinking water.  A completely randomized design with 4 treatments and 5 replicates was used.   Treatments consisted of drinking water containing no moringa leaf solution (R0), drinking water containing 5% moringa leaf solution (R1), drinking water containing 10% moringa leaf solution (R2), drinking water containing 15% moringa leaf solution (R3).  Data were subjected to an analysis of variance and a Duncan test.  Measurements were taken on feed intake, body weight gain (BWG), feed conversion, and mortality rate.  Results showed that there were significant effects (P<0.05) of treatments on BWG in week 2 and 4 and feed conversion in week 2.  No mortality of quails was found.  It was concluded that the inclusion of 10% moringa leaf solution in drinking water could increase BWG in week 2 and 4, improve feed conversion, and maintain the life of quails.  It was recommended that further studies on the effects of moringa leaf solution inclusion in drinking water on egg production in laying period.  Key words: performance, quail, moringa leaf solution


2018 ◽  
Vol 156 (1) ◽  
pp. 118-126 ◽  
Author(s):  
G. S. Farahat ◽  
B. Y. Mahmoud ◽  
E. M. El-Komy ◽  
E. A. El-Full

AbstractThe present investigation was carried out to estimate the effects of genotype and sex on growth and laying performance and assess the variations in plasma constituents in the tested genotypes and their relations with productive traits after four generations of selection. Data of growth and laying performance on 1440 females and males of Japanese quail were taken from the three quail genotypes: maternal (MG), long shank length (LSG28) and control (CG) genotypes. Genotype significantly affected all studied growth productive traits, favouring selected genotypes. The LSG28surpassed MG in total protein, albumin (Alb), globulin (Glob), triglycerides and Alb/Glob ratio and lowered both cholesterol and total lipids (TL). Sex significantly favoured females, which had higher body weight, longer shank length at 35 days of age and higher body weight gain during the period from 1 to 35 days of age. Females showed significantly higher concentrations of both Alb and TL than males. The MG exceeded LSG28in fertility and hatchability per cent. Correlations for both growth and productive traits with plasma constituents revealed inconsistent trends in either magnitude or direction. Four generations of selection resulted in substantial phenotypic improvements in most growth and productive traits, as well as plasma constituents studied in LSG28, and favoured MG in maturity, days needed to produce the first ten eggs, higher egg production per cent and heavier egg mass.


2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Muhammad Naeem Tahir

In the present feeding trial, responses of laying hens, kept at high ambient temperature, to various dietary ratios of linoleic acid (LNA) to α-linolenic acid (ALA) and vitamin A levels on performance and egg characteristics were evaluated. A total of 360, 40-wk-old, Leghorn laying hens were fed on diets with various combinations of canola oil and linseed oil to achieve LNA to ALA dietary ratios of 20:1, 10:1, 4:1, 2:1, 1:1 and 1:2, each supplemented with 3000 IU or 10000 IU vitamin A/kg of diet. The diets were fed in a 6×2 factorial Completely Randomized Design that continued for 12 weeks. Feed intake, weight gain, egg production and egg quality traits were recorded during the trial. Decreasing dietary LNA to ALA ratio in the diet affected negatively (P<0.05) on body weight gain and yolk percentage in laying hens. While, feed intake, hen-day and hen-housed egg production, feed conversion ratio (FCR) per dozen of eggs and shell quality remained unaffected (P>0.05) by dietary treatments, with the exception of FCR per kg eggs, egg weight and egg-shell thickness which responded significantly (P<0.05) to various dietary treatments. Although the dietary ratio of LNA to ALA of 4:1 or less could produce eggs by the hens with desirable quantities of n-6 and n-3 poly unsaturated fatty acids – that are characteristics of functional diets – the performance of laying hens in terms of body weight gain and egg-yolk percentage was slightly compromised.


1970 ◽  
Vol 6 (2) ◽  
pp. 315-320 ◽  
Author(s):  
MZ Islam ◽  
ZH Khandaker ◽  
SD Chowdhury ◽  
KMS Islam

An experiment was conducted with commercial broilers to investigate the effects of feeding citric acid, acetic acid and their combination on their performance and to determine the economic competence of using citric acid and acetic acid in broiler rations. A total number of 108 one day old straight run broiler chicks were distributed to four dietary treatments i.e. 0 % citric or acetic acid (A), 0.5% citric acid (B), 0.5% acetic acid (C) and their combinations 0.5% citric acid and 0.5% acetic acid (D). The birds were reared in cages. Body weight gains, feed conversion ratio (FCR), mortality, dressing yield and carcass characteristics were recorded. The performance showed significant increase in body weight gain (P<0.05) when compared with the control during 0-5 weeks of age on 0.5% citric acid (B). Feed consumption increased (P<0.05) at 2nd and 3rd weeks of age on 0.5% citric acid (B). Feed conversion was found higher (P<0.05) during 0-5 weeks of age in treatment B when compared to those of the other treatments. Carcass characteristics were not affected by dietary treatments. The highest mortality was found in treatment A and treatment C due to excessive hot. It may be concluded that use of 0.5% citric acid in the diet of broilers may have better performance in respect of live weight gain and feed conversion. Keyword: Acetic acid; Citric acid; Broiler performance DOI: 10.3329/jbau.v6i2.4828 J. Bangladesh Agril. Univ. 6(2): 315-320, 2008


2020 ◽  
Vol 20 (2) ◽  
Author(s):  
Pajri Anwar ◽  
Jiyanto Jiyanto ◽  
Nariman Hadi ◽  
Melia Afnida Santi

ABSTRAK. Tujuan penelitian ini untuk melihat pengaruh penggunaan tepung daun kipait (Tithonia diversifolia) (TDTD) terhadap performa, persentase karkas, persentase lemak abdominal, dan bobot relatif giblet. Penelitian menggunakan 200 ekor Day Old Chick (DOC) Strain CP 707 dengan rata-rata bobot badan adalah 106,03±11,99 g/ekor. Pakan perlakuan disusun berdasarkan standar kebutuhan nutrisi broiler periode starter dan grower dan diberikan mulai umur 7 hari sampai 35 hari. Penelitian menggunakan rancangan acak lengkap dengan lima perlakuan dan empat ulangan, setiap ulangan terdiri atas 10 ekor broiler. Perlakuan dalam penelitian adalah sebagai berikut: P1: Pakan kontrol (0% TDTD); P2: Pakan mengandung 4% TDTD; P3: Pakan mengandung 6% TDTD; P4: pakan mengandung 8% TDTD; dan P5: pakan mengandung 10% TDTD. Peubah yang diukur adalah performa broiler (konsumsi pakan (g/ekor); pertambahan bobot badan (g/ekor); konversi pakan); persentase karkas, persentase lemak abdominal, bobot relatif giblet. Hasil analisis sidik ragam menunjukkan bahwa penggunaan TDTD dalam pakan signifikan (P0,05) memengaruhi konsumsi pakan namun tidak signifikan (P0,05) memengaruhi pertambahan bobot badan, konversi, persentase karkas, persentase lemak abdominal dan giblet. Kesimpulan penelitian adalah TDTD dapat digunakan di dalam pakan sebanyak 4% tanpa memengaruhi performa broiler (konsumsi pakan, pertambahan bobot badan dan konversi pakan). Kemudian penggunaan sampai 10% dapat menurunkan persentase lemak abdominal dan peningkatan persentase karkas. (Effect of feeding Mexican sunflower (Tithonia diversifolia) leaf meal on performance, carcass percentage, abdominal fat, and giblet of broilers) ABSTRACT. The research aimed to see the influence of the used of Mexican sunflower (Tithonia diversifolia) leaf meal (TDLM) on the performance, the percentage of carcasses, the percentage of abdominal fat and the relative weight of giblets. The experiment used 200 day old chick (CP 707) with an average body weight of 106.03 ± 11.99 g/bird.. The treatment diet were arranged according to the standard requirements for the starter and grower period broiler nutrition. The experimental chicken were provided dietary treatments when they were 7-day old and terminated on day 35A completely randomized design (CRD) with 5 treatments and 4 replications and 10 birds in each replication was used in this experiment. Dietary treatments were: P1= control diet (0% of TDLM); P2= diet containing 4% TDLM ; P3= diet containing 6% TDLM ; P4= diet containing 8% TDLM; and P5: diet containing 10% TDLM. Variables measured were performances (feed consumption; body weight gain and feed conversion); Percentage of carcasses, percentage of abdominal fat, relative weight giblet. The results of analysis of variance showed that the used of TDLM in the diets significant effect (P0,05) on the feed consumption, but not significantly (P0,05) affect body weight gain, feed conversion, percentage of carcasses, the percentage of abdominal fat and the relative weight of giblet.. The conclusion of this study was TDLM can be used as 4% in diets without affecting the performance, the percentage of carcasses, the percentage of abdominal fat and the relative weight of giblet. Then the use of up to 10% can reduced the percentage of abdominal fat and increase the percentage of carcasses.


2009 ◽  
Vol 7 ◽  
pp. 70-74
Author(s):  
M Karki

The study was carried out during June to August 2003, using one hundred and eight day oldturkey poults which were randomly divided into twelve groups, 9 birds in each. Three replicatewere allocated to each four dietary treatments. Commercially available broiler feed (Ratna feed)was considered as basal diet (Diet-1), Diet-2 was prepared by addition of lysine (0.3%) +methionine (0.1%) to Diet-1, Diet-3 was prepared by supplementation of soybean cake (15%) +lysine (0.2%) + methionine (0.1%) to Diet-1and Diet-4 was formulated by addition of soybeancake (10%) + fishmeal (5%) in Diet-1. Each diet was offered ad lib. from one week to 10 weeksof age. Observation on weekly body weight, weekly and cumulative feed consumed wasaccessed. Weekly body weight gain and feed conversion ratio was calculated. Economics ofdietary treatments in terms of income over chicks and feed cost was also calculated.Significantly higher body weight (P < 0.01) was observed in birds fed with Diet-3 (1881.5 ± 17g), followed by Diet-4 (1745.3 ± 33 g) and Diet-2 (1460.8 ± 51 g) as compared to Diet-1 (1125.2± 20 g) up to 10 weeks of age. The birds fed with supplemented diet consumed significantly (P <0.01) higher feed than that of basal diet. The average additional profit per bird fed withsupplemented diets over basal diet was found to be Rs 31.21, Rs 29.4 and Rs 9.92 for Diet-3,followed by Diet-4 and Diet-2, respectively. The results showed that supplemented diets weremore economical than that of basal diet. It may be concluded that supplementation of eithersoybean cake (15%) along with lysine (0.2%) and methionine (0.1%) or soybean cake (10%) andfishmeal (5%) in commercial broiler ration could be beneficial for enhancing higher body weightof turkey poults and resulted higher gross income as compared to basal diet (broiler ration).Key words: Fishmeal; lysine; methionine; soybean cake; turkeyDOI: 10.3126/narj.v7i0.1871Nepal Agriculture Research Journal Vol.7 2006 pp.70-74


2021 ◽  
Vol 23 (1) ◽  
pp. 28-32
Author(s):  
A. A. ODUNSI ◽  
G. O. FARINU ◽  
J. O. AKINOLA

The performance of layers on various dietary levels of Wild Sunflower leaf meal (SLM) was investigated. Seventy-two Nera Black with commercial layers in their fourth month of lay of were randomised into six dietary treatments comprising a commercial layer mash (CLM) 05, 10, 15 and 20% SLM. Results revealed that egg production was appreciably supported even for layers on 15 and 20% SLM diets. Feed consumption ranged from 96.27 gms in layers fed 20% SLM to 106.86 gm for birds on CLM. Feed conversion efficiency in terms of kg feed South-western Nigeria up to the Middle Belt per dozen eggs was highest for 15% SLM while CLM had the highest cost of feed consumed per dozen eggs. All diets supported a net positive There is scanty report on the feeding value body weight gain on the birds. Haugh unit, yolk index, shell thickness and egg weight were not significantly influenced (P>0.05) by dietary treatments. Yolk colour was significantly (P<0.05) enhanced by SLM (at all levels) over rabbits. These preliminary findings suggest either the control or CLM. There was no mortality throughout the 12 weeks experiment lasted.


2013 ◽  
Vol 31 ◽  
pp. 13-18
Author(s):  
Ripon Kumar Datta ◽  
M Saiful Islam ◽  
Md Ashraful Kabir

Production performance and economic efficiencies of broiler of Cobb 500, cockerel of ISA Brown, Fayoumi, and RIR (Rhode Island Red) and Sonali (derived from RIR? × Fayoumi?) available in Rajshahi were investigated. Identical care and management practices were provided to chickens of all genetic groups reared for meat and egg production. Performance of four meat purpose chickens viz., Cobb 500, ISA Brown, Fayoumi and Sonali were evaluated in terms of such important parameters as initial body weight (IBW), 5-wk rearing period (RP), achieved body weight (ABW), feed intake (FI), body weight gain (BWG) and feed conversion ratio (FCR). Performance of three egg purpose chickens viz. Fayoumi, RIR and Sonali included weight of day-old chick (WDOC), growth rate (GR), death rate (DR), fertility (FR), hatchability (HT), first laying age (FLA) and monthly egg production (MEP). Economic efficiency parameters viz., total cost (TC), gross return (GRR), net return (NR) and cost-benefit ratio (CBR) were calculated for both types. In terms of FI, FCR and BWG values, broiler of Cobb 500 was the best preferred and cockerel of ISA Brown the least preferred chicken. Conversely, in terms of the CBR values for meat producers, the cockerel of ISA White (1.58) was the best and the broiler of Cobb 500 (1.15) the worst. Taking the FLA and MEP into account, RIR topped the list (19.1 wks and 23 eggs per month) whereas Cobb 500 ranked at the bottom (25.2 wks and 16 eggs per month). CBR for egg productivity, on the other hand, was highest in Sonali (1.11) followed by RIR and Fayoumi (1.10 each) and Cobb 500 (1.09). As regards the meat productivity, significant correlations existed between TC and NR for all chickens except Sonali, which exhibited a negative correlation between the traits. Negative and non-significant associations prevailed for egg productivity in all the chickens. Although broiler of Cobb 500 was found to be the most popular for meat and RIR for egg, the cockerel of ISA Brown was the chicken that earned the maximum CBR.DOI: http://dx.doi.org/10.3329/ujzru.v31i0.15374Univ. j. zool. Rajshahi Univ. Vol. 31, 2012 pp. 13-18


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